1/*
2 *Copyright (C) 2001-2004 Harold L Hunt II All Rights Reserved.
3 *
4 *Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 *"Software"), to deal in the Software without restriction, including
7 *without limitation the rights to use, copy, modify, merge, publish,
8 *distribute, sublicense, and/or sell copies of the Software, and to
9 *permit persons to whom the Software is furnished to do so, subject to
10 *the following conditions:
11 *
12 *The above copyright notice and this permission notice shall be
13 *included in all copies or substantial portions of the Software.
14 *
15 *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
19 *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
20 *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 *
23 *Except as contained in this notice, the name of Harold L Hunt II
24 *shall not be used in advertising or otherwise to promote the sale, use
25 *or other dealings in this Software without prior written authorization
26 *from Harold L Hunt II.
27 *
28 * Authors:	Harold L Hunt II
29 */
30
31#ifdef HAVE_XWIN_CONFIG_H
32#include <xwin-config.h>
33#endif
34#include "win.h"
35#include "winmsg.h"
36
37/* See Porting Layer Definition - p. 6 */
38void
39winBlockHandler(ScreenPtr pScreen, void *pTimeout)
40{
41    winScreenPriv(pScreen);
42
43#ifndef HAS_DEVWINDOWS
44    struct timeval **tvp = pTimeout;
45
46    if (*tvp != NULL) {
47      if (GetQueueStatus(QS_ALLINPUT | QS_ALLPOSTMESSAGE) != 0) {
48        /* If there are still messages to process on the Windows message
49           queue, make sure select() just polls rather than blocking.
50        */
51        (*tvp)->tv_sec = 0;
52        (*tvp)->tv_usec = 0;
53      }
54      else {
55        /* Otherwise, lacking /dev/windows, we must wake up again in
56           a reasonable time to check the Windows message queue. without
57           noticeable delay.
58         */
59        (*tvp)->tv_sec = 0;
60        (*tvp)->tv_usec = 100;
61      }
62    }
63#endif
64
65    /* Signal threaded modules to begin */
66    if (pScreenPriv != NULL && !pScreenPriv->fServerStarted) {
67        int iReturn;
68
69        winDebug("winBlockHandler - pthread_mutex_unlock()\n");
70
71        /* Flag that modules are to be started */
72        pScreenPriv->fServerStarted = TRUE;
73
74        /* Unlock the mutex for threaded modules */
75        iReturn = pthread_mutex_unlock(&pScreenPriv->pmServerStarted);
76        if (iReturn != 0) {
77            ErrorF("winBlockHandler - pthread_mutex_unlock () failed: %d\n",
78                   iReturn);
79        }
80        else {
81            winDebug("winBlockHandler - pthread_mutex_unlock () returned\n");
82        }
83    }
84
85  /*
86    At least one X client has asked to suspend the screensaver, so
87    reset Windows' display idle timer
88  */
89#ifdef SCREENSAVER
90  if (screenSaverSuspended)
91    SetThreadExecutionState(ES_DISPLAY_REQUIRED);
92#endif
93}
94